Concrete Calculator

Welcome to Calculatorsoup Your Ultimate Concrete Estimator

Quickly calculate concrete volume, cement, sand, gravel, and water requirements for all your construction projects. Whether you’re working on slabs, columns, circular footings, stairs, or curb & gutter structures, this tool gives you precise results instantly.

How to Use the Calculator

Select the section that matches your project:
- Slabs, Square Footings, or Walls
- Hole, Column, or Round Footings
- Circular Slab or Tube
- Curb and Gutter Barrier
- Stairs
Enter the required dimensions in meters.
Specify the quantity if you have multiple structures.
Click Calculate to see:
- Concrete Volume (m³)
- Cement (bags & kg)
- Sand (m³)
- Gravel (m³)
- Water (liters)
Click Download to save your calculation for future reference.

Slabs, Square Footings, or Walls

Length (m): Width (m):

Thickness / Height (m): Quantity:

Density: 1440 kg/m³ — Bag: 50kg

Volume = L × W × T

Hole, Column, or Round Footings

Diameter (m): Depth / Height (m):

Quantity:

Volume = π × (d/2)² × h

Circular Slab or Tube

Outer Radius (m): Inner Radius (m):

Thickness / Height (m): Quantity:

Volume = π (R² − r²) × t

Curb and Gutter Barrier

Curb Depth (m): Gutter Width (m):

Curb Height (m): Flag Thickness (m):

Length (m): Quantity:

Approximate combined volume of curb + gutter + flag

Stairs

Run (tread depth) (m): Rise (m):

Width (m): Platform Depth (m):

Number of Steps:

Stairs volume ≈ sum of step volumes

Tips for Accurate Calculations

Always measure length, width, height, and thickness carefully.
Round up the quantity slightly to avoid shortages.
Ensure consistent units (meters for dimensions).
Use the results as a guideline; adjust for site conditions and wastage.

Why Use This Concrete Calculator?

Fast & Accurate: Get instant volume and material estimates.
All-in-One: Covers slabs, columns, circular footings, stairs, and curbs.
Downloadable Results: Save or print calculations for your construction plan.
Professional Diagrams: Visualize the shape while entering dimensions.
Free & Easy to Use: No signup or installation required.

Pro Tip:

For larger projects, calculate each section separately and sum up the total materials required. Always add 5–10% extra for safety and wastage.